<template>
<div>
  <!-- 导航区域 -->
<el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>

</el-breadcrumb>
<!-- 卡片视图区域 -->
<el-card class="box-card">
  <!-- 搜索与添加区域 -->
  <el-row :gutter="25">
    <!-- 第一列 -->
    <el-col :span="15">
        <el-input 
        placeholder="请输入内容" 
        v-model="queryInfo.query" 
        clearable
        @clear="getUserList">
  <el-button slot="append" icon="el-icon-search" @click="getUserList()" @keyup.enter.native="getUserList()"></el-button>
  </el-input>
    </el-col>
    <!-- 第二列 -->
    <el-col :span="4">
      <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
    </el-col>
  </el-row>
  <!-- 用户列表区域 -->
  <el-table :data="userlist" border stripe>
    <el-table-column type="index" label="#"></el-table-column>
    <el-table-column label="邮箱" prop="email"></el-table-column>
    <el-table-column label="电话" prop="mobile"></el-table-column>
    <el-table-column label="角色" prop="role_name"></el-table-column>
    <el-table-column label="状态">
      <template slot-scope="scope">
        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
      </template>
    </el-table-column>
    <el-table-column label="操作">
      <template slot-scope="scope">
        <!-- 修改 -->
      <el-tooltip class="item" effect="dark" content="修改" placement="top" :enterable="false">
         <el-button type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)"></el-button>
    </el-tooltip>
    <!-- 删除 -->
    <el-tooltip class="item" effect="dark" content="删除" placement="top" :enterable="false">
         <el-button type="danger" icon="el-icon-delete" @click="removeUSerById(scope.row.id)"></el-button>
    </el-tooltip>
    <!-- 分配内容 -->
    <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
         <el-button type="warning" icon="el-icon-setting" @click="setRole(scope.row)"></el-button>
    </el-tooltip>
      </template>
    </el-table-column>
  </el-table>
  <!-- 分页区域 -->
      <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[2, 3, 5, 7]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
  </el-card>
  <!-- 添加用户对话框 -->
  <el-dialog
  title="添加用户" :visible="addDialogVisible" width="50%" @close="addDialogClosed">
  <!-- 对话框 => 内容主体区 -->
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
    <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
    <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
    <el-form-item label="手机号" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <!-- 内容底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取消</el-button>
    <el-button type="primary" @click="addUser">确定</el-button>
  </span>
</el-dialog>



<!-- 修改用户的对话框 -->
<el-dialog title="修改用户" :visible="editDialogVisible" width="50%" @close="editDialogClosed()">
<!-- 对话框中的表单 -->

<el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
  <el-form-item label="用户名">
    <el-input v-model="editForm.username" disabled></el-input>
  </el-form-item>
    <el-form-item label="邮箱" prop="email">
    <el-input  v-model="editForm.email"></el-input>
  </el-form-item>
    <el-form-item label="手机号" prop="mobile">
    <el-input  v-model="editForm.mobile"></el-input>
  </el-form-item>
</el-form>


  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色对话框 -->
<el-dialog
  title="提示"
  :visible.sync="setRoleDialogVisible"
  width="30%"
  :before-close="handleClose">
  <div>
    <p>当前的用户:{{userInfo.username}}</p>
    <p>当前的角色:{{userInfo.role_name}}</p>
    <p>
      分配新角色：
      <el-select v-model="selectedRoleId" placeholder="请选择">
       <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
</div>
</template>

<script>
export default {
  name:'user',
  data(){
    // 验证邮箱规则
    var checkEmail = (rule,value,cb) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if(regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号规则
    var checkMobile = (rule,value,cb) => {
      // 定义一个验证手机号的正则
      const regMobile = /^(?:(?:\+|00)86)?1(?:(?:3[\d])|(?:4[5-79])|(?:5[0-35-9])|(?:6[5-7])|(?:7[0-8])|(?:8[\d])|(?:9[189]))\d{8}$/
      if(regMobile.test(value)){
        return cb();
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo:{
        query:'',
        pagenum:1,
        pagesize:2
      },
      userlist:[],
      total:0,
      // 添加用户对话框的显示和隐藏
      addDialogVisible : false,
      // 添加用户的表单数据
      addForm:{
        username:'',
        password:'',
        email:'',
        mobile:''
      },
      // 修改表单内容的验证规则
      editFormRules:{
      email:[
        {
          required:true,
          message:'请输入用户的邮箱地址',
          trigger:['blur']
        },
        {
          validator:checkEmail,
          trigger:'blur'
        }
      ],
      mobile:[
        {
          required:true,
          message:'请输入用户的手机号',
          trigger:'blur'
        },
        {
          validator:checkMobile,
          trigger:'blur'
        }
      ]
      },
      // 添加表单的验证规则
      addFormRules:{
        username:[{
        required:true,
        message:'请输入用户名',
        trigger:'blur'},
        {
          min:3,
          max:10,
          message:'用户名长度为3-10之间',
          trigger:'blur'
        }
      ],
      password:[
        {
          required:true,
          message:'请输入密码',
          trigger:'blur'
        },
        {
          min:7,
          max:17,
          message:'用户名长度为7-17之间',
          trigger:'blur'
        }
      ],
      email:[
        {
          required:true,
          message:'请输入正确的邮箱地址',
          trigger:['blur','change']
        },
        {
          validator:checkEmail,
          trigger:'blur'
        }
      ],
      mobile:[
        {
          required:true,
          message:'请输入手机号',
          trigger:'blur'
        },
        {
          validator:checkMobile,
          trigger:'blur'
        }
      ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible:false,
      // 查询到的用户信息对象
      editForm:{},
      // 控制分配角色的显示与隐藏
      setRoleDialogVisible:false,
      // 需要被分配角色的用户信息
      userInfo:{},
      // 定义所有角色的数据列表
      rolesList:[],
      // 已选中的角色id值
      selectedRoleId:''
      
    }
  },
  created(){
    this.getUserList()
  },
  methods:{
    // 获取用户列表
    async getUserList(){
     const {data:res} = await this.$http.get('users',{
        params:this.queryInfo
      })
      if(res.meta.status !== 200){
        return this.$message.error("获取失败")
      }
      this.userlist = res.data.users
      this.total = res.data.total
      // console.log(res)
      this.queryInfo.pagenum = 1
    },
    // 监听 pagesize 改变的事件
    handleSizeChange(newSize){
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange(newPage){
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听开关状态的改变
    async userStateChanged(userinfo){
      const {data:res} = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
        )
      if(res.meta.status !== 200){
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error("更新失败");
      } 
      this.$message.success("更新成功");
      // console.log(userinfo)
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed(){
      this.$refs.addFormRef.resetFields()
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed(){
      this.$refs.editFormRef.resetFields()
    },
    // 添加用户
    addUser(){
      this.$refs.addFormRef.validate(async valid => {
        if(!valid) return
        // 可以发起添加用户的网络请求
         const {data:res} = await this.$http.post('users',this.addForm)
         if(res.meta.status !== 201) return this.$message.error("添加用户失败") 
           this.$message.success("添加用户成功");
        //  添加用户成功之后隐藏用户的对话框
         this.addDialogVisible = false
        //  重新获取用户列表
         this.getUserList()
        })
    },
    // 展示编辑用户的对话框
   async showEditDialog(id){
     console.log(id)
    const {data:res} = await this.$http.get('users/' + id)
    if(res.meta.status !== 200){
      return this.$message.error("查询用户信息失败")
    }
    this.editForm = res.data
      this.editDialogVisible = true
    },
    // 修改用户信息并提交
    editUserInfo(){
      this.$refs.editFormRef.validate(async valid => {
        if(!valid) return 
        // 通过了就发起修改用户信息的数据请求
        const {data:res} = await this.$http.put('users/' + this.editForm.id,
        {
        email:this.editForm.email,
        mobile:this.editForm.mobile
        })
        if(res.meta.status !== 200){
          return this.$message.error("更新用户信息失败");
        }
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        this.$message.success("更新用户信息成功");
      })
    },
    // 根据 id 删除对应的用户信息
    async removeUSerById(id){
      // 弹框 询问用户是否确认删除数据
       const confirmResult =await this.$confirm('此操作将永久删除该条数据,是否继续？', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        // 如果用户确认删除  返回的是 字符串
        // 如果用户取消了删除 则返回的是 字符串 cancel
        // console.log(confirmResult)
        if(confirmResult !== 'confirm'){
          return this.$message.info('已取消删除操作');
        }
        // this.$message.success("删除成功")
        const {data:res} = await this.$http.delete('users/' + id)
        if(res.meta.status !== 200){
          return this.$message.error("删除用户失败")
        }
        this.$message.success("删除用户成功");
        this.getUserList()
    },
    // 展示分配角色的对话框
    async setRole(userInfo){
      this.userInfo = userInfo
      // 在展示对话框之前，获取所有角色的列表
       const {data:res}= await this.$http.get('roles')
       if(res.meta.status !== 200){
         return this.$message.error("获取角色列表失败")
       }
       this.rolesList = res.data
       this.$message.success("获取角色列表成功")
      this.setRoleDialogVisible = true
    },
    // 点击确定按钮 完成角色分配
    async saveRoleInfo(){
      if(!this.selectedRoleId){
        return this.$message.error('请选择要分配的角色')
      }
     const {data:res}= await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
     if(res.meta.status !== 200) {
       return this.$message.error('更新角色失败')
     }
     this.$message.success("更新角色成功")
     this.getUserList()
     this.setRoleDialogVisible = false
    }
  }
}
</script>


